Drug Uses
Given for impotency in men, Viagra increases the ability to achieve and maintain erection during sex. The drug is known to increase the ability to achieve and maintain erection during sexual activity.

How Taken
Coming in tablet form, Viagra should be taken an hour before sexual activity. It can also be taken four hours to half an hour before sex. Well, it should not be taken more than one a day.

Missed Dose
There is no way that you miss ay dosage as it is taken according to he need.

More Information
You should not take Viagra if you are taking medicines containing nitrates. If taken with any medicine that contains nitrate, it can lead to a sudden drop in the blood pressure.  You could experience dizziness. It can also lead to heart attack and stroke.  Viagra is only for men and not for women and children. It is better to use the drug as per the doctor’s direction.

Warnings/Precautions
It is better to consult a doctor before going for Viagra. Tell him all your heath history. You have to tell the doctor if you had a stroke or heart attack; history of heart failure; have angina and if you had coronary artery diseases. Do not hesitate to tell your physician if you have blood pressure (high and low), liver and kidney problems, blood problems like leukemia or sickle cell anemia.

Let your doctor know if you had retinitis pigmentosa and stomach ulcer. If you have Peyronie's disease (physical deformity of penis), prolonged and painful erections and tumor of the bone marrow, you have to tell the doctor. And if you are taking any medicine for impotency, you have to state it. If you have any of the problems stated above, you may not be able to use Viagra or has to go for dosage adjustments, which your doctor can specify.

Viagra is not for women. And if you are over 65 years, you can experience side effects.

Disclaimer
We do not claim that all the issues that are discussed here are accurate. We have only detailed some general issues and so it is better not to rely completely on the above information. We have not discussed integrations and precautions of the drug in detail.

Possible Side Effects
Viagra also comes with many side effects, which does not last long. Well, most of the side effects occur only if the dosage is higher. Headache, upset stomach and flushing of the face are the most common side effects. Temporary colour vision and blurred vision are some of the less known side effects.

In some cases, it has been reported that the erection lasts for many hours and if it lasts for more than four hours, better consul a doctor. If this is not treated, it can cause damage to the penis. Heart attack, irregular heart beats, stroke and even death have been rarely reported.